The Building Code of Canada stated that the official definition of fire retardant is timber that has been soaked with anti-fire chemicals in solvent under high load in accordance with a series of standards. According to these Canadian standards, a fire retardant product that only has a surface coating is not sufficient to be regarded as a full fire retardant process and becomes known as an anti-fire coated product for your custom exterior siding.
This FRT process occurs at wooden treatment facilities. The treatment is highly similar to the treatment processes such as pressure treating wood with regards to the resistance of insects and the decay of the timber. During this process, air is removed from the wood and the wood is placed in a pressurized chamber. Within the chamber, the timber is pressurized with fire retardant chemicals. Thereafter the very same chamber is depressurized and the wood or lumber is dried to the appropriate moisture content.
The treatment itself is known to be colourless. There have been some reported cases when manufactures obtained wood of a unique red-brown colour. Usually, the FRT does not interfere with the wood s paint coating. The only time a colour change will occur is if the wooden product being treated as an extra moisture content. Albeit whether the process left wood without a colour or with a colour, the FRT wood needs to have an approval stamp by an external or third party company also known as the inspection agency. This stamp is there to signify that the wood obtained from the process complies with the code set aside for FRT products.
Remember the fire retardant treatment produced wood can be used for a multitude of building purposes. Based on the standards the wood products can be used for both interiors as well as exterior building purposes. Interior wood products can be used for architectural millwork, trim, sheathing and stairs. The exterior uses of the FRT wood include roof coverings, wall, balconies, stairs, decks, fences and exterior structures.
One ought to note that when FRT products are used as exterior finishes, they are proved to various weather conditions and high humidity. The drastic weather conditions may indeed be detrimental to these FRT products and thus they need to be treated with specific non-leeching products. Specifically for wooden products used as exterior finishes, the wooden products must undergo a weather acceleration test. Only if the FRTW obtains a flame speeding rate of 25 after the test can it be deemed appropriate for exterior usage?
FRT wooden products unlike products that have not undergone the process cannot be ripped. Furthermore, FRT products are lightweight and economical but it remains heavier and a tad bit pricier than its untreated counterparts. The increase in price is due to the actual process. The main benefit of the FRT process is to minimize the strength of the wooden product.
When there is a building fire, chemicals in the anti-fire wood treatment products react with the heat from an open flame, the reaction produces carbon dioxide, water and carbon char. Now carbon char insulates the wood from the fire and thus reduces the rate at which the fire will spread.
With this knowledge, you can assess whether the wooden products that you select for building require this type of fire protection or not.
This FRT process occurs at wooden treatment facilities. The treatment is highly similar to the treatment processes such as pressure treating wood with regards to the resistance of insects and the decay of the timber. During this process, air is removed from the wood and the wood is placed in a pressurized chamber. Within the chamber, the timber is pressurized with fire retardant chemicals. Thereafter the very same chamber is depressurized and the wood or lumber is dried to the appropriate moisture content.
The treatment itself is known to be colourless. There have been some reported cases when manufactures obtained wood of a unique red-brown colour. Usually, the FRT does not interfere with the wood s paint coating. The only time a colour change will occur is if the wooden product being treated as an extra moisture content. Albeit whether the process left wood without a colour or with a colour, the FRT wood needs to have an approval stamp by an external or third party company also known as the inspection agency. This stamp is there to signify that the wood obtained from the process complies with the code set aside for FRT products.
Remember the fire retardant treatment produced wood can be used for a multitude of building purposes. Based on the standards the wood products can be used for both interiors as well as exterior building purposes. Interior wood products can be used for architectural millwork, trim, sheathing and stairs. The exterior uses of the FRT wood include roof coverings, wall, balconies, stairs, decks, fences and exterior structures.
One ought to note that when FRT products are used as exterior finishes, they are proved to various weather conditions and high humidity. The drastic weather conditions may indeed be detrimental to these FRT products and thus they need to be treated with specific non-leeching products. Specifically for wooden products used as exterior finishes, the wooden products must undergo a weather acceleration test. Only if the FRTW obtains a flame speeding rate of 25 after the test can it be deemed appropriate for exterior usage?
FRT wooden products unlike products that have not undergone the process cannot be ripped. Furthermore, FRT products are lightweight and economical but it remains heavier and a tad bit pricier than its untreated counterparts. The increase in price is due to the actual process. The main benefit of the FRT process is to minimize the strength of the wooden product.
When there is a building fire, chemicals in the anti-fire wood treatment products react with the heat from an open flame, the reaction produces carbon dioxide, water and carbon char. Now carbon char insulates the wood from the fire and thus reduces the rate at which the fire will spread.
With this knowledge, you can assess whether the wooden products that you select for building require this type of fire protection or not.
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